The horizon problem or the homogeneity problem is an unsolved problem that has been a headache to cosmologists. It is classified as a cosmological fine-tuning problem. Consider our visible unfathomable uniform universe and when we look across the space from one edge to the other horizon we are witnessing nearly 28 billion light years. Which means that there are objects in the universe that are 28 billion light years away from each other, and this is fine on its own except that all data we have gathered proves that our universe was created only 13.8 billion light years ago. Then how can two objects that reside within our universe have a spatial distance that exceeds its creation. Not only that both places have the same background microwave radiation effects and since nothing can travel faster than the speed of light, not even radiation how can the effects of radiation spread to places where light is yet to reach?
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